[Kevin Beard]

I set up a 29 g. My ph is 7.6 water temp. 78 Ammonia 0 Nitrite and Nitrate 0 All the sudden, in fact since I came home, my pleco and a cichlid died . I looked at the tank all was ok but an hour or so later and the 2 were dead on the bottom. I don't see any sign of disease with the other fish. There are 2 small cichlids in there and 2 red platies. I am planning to move the platies out. Any thoughts about what went wrong? Any suggestions as to what should I do now? I have a medium size pc. of African wood and 2 pc of shell in the tank. I have read other posts that asked if the fish were at the top gasping? The cichlid that died was at the top several times. The filter stirs the water so I would think there is plenty of oxygen in the water. I did a 20% water change a few days ago, I treated the water w/ stress coat and added more special blend.

I do have live plants. I bought some Tetra liquid fert. and put in the amount for my size tank.

 

[SeaHorse]

Post moved to its own thread.

 

[Flint]

What kind of cichlids? Cichlids and platies shouldn't be living together. What are your parameters, how long has the tank been set up and did you cycle it?